Why does my belt vibrate then bust.

Like I said before check all your motor mounts. My buddy had a problem with busting belts and it was his engine mount. The one had no bolt when he put a new bolt in and it was fine no more busting belts.

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>Originally posted by porsche:

this happens at high speeds, ive tried three diffrant belts; 1103, 1104. i called a shop and they said that it will take an 1108. is this a smaler belt and should it stop it from vibrating at the bottom

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you are burning your belt when you first start for the day I bet if you get a warm up stand and get the belt and track moving before riding it will help I have seen it a million times

i agree with jon,,ive seen alot of belts get chewed up for guys leaving their sleds outside with no stand under it, lifting the track off the ground, you should put a stand under it, the start your sled and let it idle for a bit, then hit the throttle to get the track to free wheel for a bit, this will help belt life greatly. but out of aligned clutch will do the same, as will bad mounts as SIR SLED_DOG stated, and as erick said the torque stop as well.

1993 xlt sp 580
xtra 10 suspension